IR Hot Spotting Low Tech Fix

[guykuo]

Several of my cameras had pretty severe IR hot spotting. My fix was 4 to 5 layers of 3M Scotch Tape over the IR emitters. Super simple, reversible, quick, and cheap. Put several layers just over the emitter's, not the rest of the optical cover. Add more layers until the IR is diffused the amount you need.

Give it a try if hot spotting is a problem.

 

[bigredfish]

nice

 

[TonyR]

Several of my cameras had pretty severe IR hot spotting. My fix was 4 to 5 layers of 3M Scotch Tape over the IR emitters. Super simple, reversible, quick, and cheap. Put several layers just over the emitter's, not the rest of the optical cover. Add more layers until the IR is diffused the amount you need.

Give it a try if hot spotting is a problem.

View attachment 226128

Too simple, can't possibly work.....I don't like it.
</end sarcasm>

 

[CCTVCam]

Only issue is it probably won't last long due to the IR, but then again it's cheap and replaceable. You could explore other alternatives such as uv stabilised plastics with patterns in them, maybe even some vision obscuring window films such as used for bathrooms etc . At the end of the day, what you're doing is creating a diffuser. Only danger I see to any of this is you are insulating / maybe reflecting some of the light back into the housing, so it might not be advisable if it's subject to high temps.